发明人徐明华,罗永刚,朱建伟. "一种(RR+SS)-福莫特罗杂质79半富马酸盐的合成方法" [P]. 中国发明专利, 专利号 CN 108922786 A, 授权公告日 2019-07-19.
发明人周伟,韩伟,胡光. "Method for the Synthesis of (RR+SS)-Formoterol Impurity 79 Hemifumarate" [P]. 中国发明专利, 专利号 CN 112858415 B, 授权公告日 2018-10-06.
发明人孙丽萍,赵玉洁,朱建伟. "A Process for Preparing High-Purity (RR+SS)-Formoterol Impurity 79 Hemifumarate" [P]. 中国发明专利, 专利号 CN 110758767 B, 授权公告日 2023-02-27.
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